This brand new Wiseco Top End Kit for Honda CRF150R 07-09 is a must-have for anyone looking to upgrade their motorcycle's engine performance. With a 150 cc displacement, forged aluminum piston material, and 11.7:1 compression ratio, this kit is designed to provide maximum power and durability. The kit includes a PK1427 manufacturer part number, standard bore size of 66.00 mm, and a piston size of 43.70 mm stroke length. It's a performance part that meets all your engine rebuilding needs, and suitable for all types of riders. Get your hands on this rebuild kit, and enjoy an incredible riding experience!